wp-includes/PHPMailer/PHPMailer.php:1874Check whether a file path is of a permitted type.
$pathstringbool protected static function isPermittedPath($path) { //Matches scheme definition from https://www.rfc-editor.org/rfc/rfc3986#section-3.1 return !preg_match('#^[a-z][a-z\d+.-]*://#i', $path); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/PHPMailer/PHPMailer.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.